1 files changed, 37 insertions, 0 deletions
diff --git a/djb/buffer_put.c b/djb/buffer_put.c
new file mode 100644
index 0000000..f67e98d
--- /dev/null
+++ b/djb/buffer_put.c
@@ -0,0 +1,37 @@
+#include <errno.h>
+#include "buffer.h"
+
+#ifdef USE_BUFFER_LARGE_WRITE
+#define X(a) (a>0xffffff)?0xffffff:a
+#else
+#define X(a) a
+#endif
+
+static int allwrite(buffer *b, const char *buf, unsigned int len) {
+  int w;
+  b->p = 0;
+  while (len) {
+    w = b->op(b->fd, buf, X(len));
+    if (w == -1) {
+      if (errno == EINTR) continue;
+      return -1;
+    }
+    buf += w;
+    len -= w;
+  }
+  return 0;
+}
+
+int buffer_flush(buffer *b) /*EXTRACT_INCL*/ {
+  return allwrite(b,b->x,b->p);
+}
+
+int buffer_put(buffer *b, const char* s, unsigned int len) /*EXTRACT_INCL*/ {
+  if (b->a-b->p < len) {
+    if (buffer_flush(b)==-1) return -1;
+    if (b->a < len) return allwrite(b, s, len);
+  }
+  byte_copy(b->x + b->p, len, s);
+  b->p += len;
+  return 0;
+}